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seen Aug 26 '12 at 3:29

May
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awarded  Popular Question
Aug
21
comment Why isn't there any repulsive force between Na+ and K+ disrupting thier roles in transmembrane voltage/ action potentials
Please forgive my elementary knowledge :) A good habit to source answers nonetheless, thanks!
Aug
21
accepted Why isn't there any repulsive force between Na+ and K+ disrupting thier roles in transmembrane voltage/ action potentials
Aug
21
comment Why isn't there any repulsive force between Na+ and K+ disrupting thier roles in transmembrane voltage/ action potentials
Ok, in other words.. the ions are too small and not uniformly purposed/moving to have such any such disruptive effect from hindering the AP process. Thanks for the insight, if I could trouble you for a source you surely would receive the BEST answer and this would be a resolved question.
Aug
21
comment Why isn't there any repulsive force between Na+ and K+ disrupting thier roles in transmembrane voltage/ action potentials
The electrochemical gradients are estabished from movement and difference of each ion internal and external concentrations - K+intracell/K+extracell -, NOT between differing ions ie not between Na+ and K+.
Aug
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asked Why isn't there any repulsive force between Na+ and K+ disrupting thier roles in transmembrane voltage/ action potentials
Jul
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asked Text/resource with information on all skeletal muscles and their motor units
Jul
11
comment SPINAL CORD: Do the axons from white matter synapse with the cell bodies in grey matter?
Thank you! Very informative.
Jul
11
accepted SPINAL CORD: Do the axons from white matter synapse with the cell bodies in grey matter?
Jul
11
comment SPINAL CORD: Do the axons from white matter synapse with the cell bodies in grey matter?
I am studying Excercise Physiology, for the purposes of personal training, from that vantage point I am trying to solidify a big picture understanding mostly. So no i don't have to know the nitty gritty of a particular tract, my texts and resources have illustrated the big differences between the white and grey matter and thier main functions but do not really address what if any signaling takes place between each other. I was guessing and take it from your answer they do. Is there a typical pattern or does each pathway feature a unique setup between the white and grey matter?
Jul
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asked SPINAL CORD: Do the axons from white matter synapse with the cell bodies in grey matter?
Jun
5
comment Understanding Membrane / Resting Potential from the perspective of ions?
For anyone else interested I found a voluminous, free, online resource with animations and very detailed explanations which addresses the topic here: st-andrews.ac.uk/~wjh/neurotut/mempot.html
Jun
5
awarded  Supporter
Jun
5
awarded  Scholar
Jun
5
accepted Understanding Membrane / Resting Potential from the perspective of ions?
Jun
5
awarded  Student
Jun
5
asked Understanding Membrane / Resting Potential from the perspective of ions?